Shuttle truing machine



March 23, 1937. F. O. GIBBS SHUTTLE TRUING MACHINE Filed Oct. 24, 1935 5 Sheets-Sheet l amend/0'0. RA was 0. 6/585 March 23, 1937. F. o. GIBBS SHUTTLE TRUING MACHINE Filed Oct. 24, 1955 3 Sheets-Sheet 2 Filed Oct. 24, 1935 3 Sheets-Sheet 3 ME R \1 Qv m i 4 1% c w M @s M MR.

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7/ N Z 9 S\ v om: i m 8 V w w m. z m c2 g a w m mm MIR Patented Mar. 23, 1937 PATENT OFFMIE SHUTTLE TRUING MACHINE Francis 0. Gibbs, Kernersville, N. 0., assignor to Southern Silk Mills, Inc., Kernersville, N. 0., a. corporation of North Carolina Application October 24, 1935, Serial No. 46,557

,zClai'ms- (Cl.144-2) This invention relates to a shuttle truing ma chine comprising means for holding the shuttle by its tips while a finishing operation is carried out on the shuttle, together with means for adjusting the position of the shuttle with relation to a rotary working tool. Means also are provided for adjusting the position of the working tool with relation to the shuttle. The combined apparatus provides means whereby the sides of a shuttle can be finished in such a manner that they are perfectly true thus resulting in better operation of the same when they are employed in looms for Weaving. i

It is, therefore, an object of the invention to provide means for holding a shuttle by its tips and subjecting the sides thereof to the action of a rotary cutting tool having points for-engaging the side of the shuttle and cutting the same as the cutting tool is moved along the side of the Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in which:-.

Figure 1 is a plan View of the invention; Figure 2 is an elevation of the upper front portion of Figure 1;

Figure 3 is a transverse sectional view taken along line 33 in Figure 1;

Figure 4 is a transverse sectional view along line 44 in Figure 1;

Figure 5 is a sectional view taken along line 5--5 in Figure 2; j i

, Figure 6 is a sectional view taken along line 6-6 in Figure 2; r

Figure '7 is a sectional plan view taken along line 7-1 in Figure 4;

taken Figure 8 is a verticalsectional view taken along line 88 in Figure 4;

Figure 9 is a sectional plan view of the central portion of Figure 1 and taken immediately below the motor;

, Figure 10 is a vertical sectional view taken along line !-l0 in Figure 9;

Figure 11 is a plan View showing the ends of a shuttle being engaged by a pair of auxiliary attachments which are adapted to be used when the extremities of the shuttle are slightly off center;

Figure 12 is an elevation of one of these auxiliary attachments secured to the standard shuttle engaging means;

Figure 13 is a view looking along line l3-l3 in Figure 12.

Referring more specifically to the drawings, the numeral l0 denotes the base member of a shuttle truing machine which has integral with the upper side and running longitudinally thereof a tenon Ii which is adapted to be engaged by a mortise l2 of slide l3. Disposed between tenon II and mortise I2 is a shim l5 which is held-in 15 position by means of set screws I50, to take up the lost motion between the tenon and mortise.

Mounted on the upper side of slide i3 is another member M by any suitable means such as stud bolts l6, which bolts penetrate slots i! in the member Hi and have their lower ends threadably secured in the upper side of slide l3. By providing the slots H, the position of member 14 may be adjusted with relation to the slide H3. The member M has a downwardly extending lip Ma, which is penetrated by set screws I8. The ends'of these set screws contact the side of member l3 and assist the bolts l6 in holding the member E4 in its adjusted position. For example, if it is desired that the member it be adjusted at a position so that its longitudinal axis will form a slight acute angle with the longitudinal axis of the base it], the bolts It may be loosened and by manipulating the set screws IS the member l4 may be adjusted ina slightly different position. 5 The upper side of member M has a tenon 2B integral therewith over which is adapted to fit a mortise2l of sliding support 22. A shim I9 is disposed between mortise 2i and tenon 20 in order to take up lost motion. The shim is held in position by means of set screws 19a. The support 22 has a vertical leg 24 integral therewith to which is pivotally secured as at 25 a member 26, the pin 25 being secured in member 24 and looselymounted in member 26.

,By referring to Figures 4, '1' and 8, it is seen that stud bolts 29 and 30 penetrate slots 3| and 32 respectively in upstanding leg 24 and have the ends thereof threadably secured in member 26. This allows a limited adjustment of member 26 and its associated parts about the pivot point 25. Since the member 26 has an outstanding leg 26a projecting past the side of upstanding leg 24 with screws 33 and 34 threadably penetrating this leg and engaging the upstanding leg 24, an adjustment can be easily made by loosening the stud bolts 29 and 30 and manipulating the screws 33 and 34 to re-position member 28 about pivot 25.

The member 26 has a tenon 36 integral therewith over which a mortise 31 of motor support 38 is adapted to slide. This support 38 has a circular band 39 integral therewith in which a suitable motor 48 is adapted to be placed and lcheld in clamped position by any suitable means such as screw 4|. In order to take up the lost motion between tenon 36 and mortise 31 a shim 42 is provided which is held .in position by means of set screws 42a.

15 Secured to motor shaft 4-3 is a chuck 44 in which the cutting tool 45 is adapted to be inserted. The tool 45 rotates at a very high speed and engages the sides of the shuttle 41 as shown in Figure 1. However, in order to properly cut the sides from the shuttle to make it absolutely true, it is necessary to provide means for moving the cutting tool 45 longitudinally with the shuttle, transversely of the shuttle and in a vertical plane with respect to the shuttle.

In order to move the motor transversely of the shuttle to determine the thickness of the slice cut from the side thereof, a suitable threaded bore 59 is provided in member l4, said bore having mounted therein a threaded rod 30 (Fig. This rod 5| penetrates downwardly extending lip Mb and has a collar 53 disposed on one side of the lip, and fixedly secured to the rod 5| and a dial 54 is fixedly secured to rod 5| on the other side of the lip. On the end of rod 5| is a knurled nut 55 which is operated when it is desired to vary the movement of slide 22, the cutting tool 45 and its associated parts transversely of the shuttle. A suitable pointer 51 is provided to allow one to accurately 40 gauge the amount which is being cut from the shuttle.

In order to move the cutting tool in a vertical plane a suitable threaded rod 68 is threadably secured in a bore 6| in member 26. The upper 4:5 end of rod 68 penetrates lip or flange 38a of member 38 and. this rod has disposed on the lower side of the lip a collar 63 and on the upper side of said lip is fixedly secured on the end of the rod a knurled nut 64 which is operated when 50 it is desired to change the position of the motor and the cutting tool in a vertical plane.

In order to provide means for moving the cutting tool and its associated parts longitudinally of the shuttle a suitable threaded rod 65 is ro- 0;) tatably mounted in the end portions of tenon The right-hand end of rod 55 has a collar 66 fixedly secured thereon and engaging one side of the end of tenon II and the end of rod 65 has fixedly secured thereon a hand wheel 61 (50 which has a hub portion 88 engaging the other side of the end portion of tenon The intermediate portion of rod 65 is supported by a collar 18, which collar is secured to the lower side of member I3.

5 By referring to Figures 4, 8 and 10, it is seen that a vertical bore 13 is located in the central portions of members l3 and I4 and has slidably mounted therein a pin 14, the lower end of said pin being hobbed to fit the threads on rod 65.

7 The upper end of pin 14 has a transverse slot therein in which is adapted to fit a projection which is integral with pin 76, said pin 16 being rotatably mounted in member l4. On the end of pin 16 is a lever 11 which has pivotally secured 75 to the upper end thereof a link 18. Thislink is used for operating the pins 14 and 16 and has the right-hand end thereof (Figs. 1 and 9), slidably mounted in a bracket 88 which in turn is secured to the top of member l4. Stop pin 19 extends outwardly to limit the rotative movement of lever 11.

In order to normally hold the pins 16 and 14 in the position shown in Figure 10, a tension spring 8| has been provided, said spring having one end thereof secured at the upper end of lever 11 and its other end secured to a suitable spring perch 82. Since the projection 15 is offcenter with the main portion of the pin 16, it is evident that the rotation of pin 16 through the lever 11 and link 18 will cause pin M to rise vertically. When this is done the lower end thereof will be disengaged from the threads on the rod 65. In this position the motor and cutting tool along with its associated parts may be moved longitudinally of the framework H]. In other words, the member l3 only has one means of engagement with rod 65 which is through the pin 14, and when this pin is disconnected from the rod the entire mounting may be moved longitudinally on the tenon Of course, this rotation of pin 16 is effected by pulling the link I8 to the right in Figures 1 and 9 and when the link i8 is released the spring 8|, will automatically return the parts to normal position as shown in Figure 10.

By referring to Figure 8 it is seen that projection 15 is disposed slightly to the left of the vertical center line of the main portion of pin 16 thereby causing any upward thrust exerted by pin 14 on projection 15 to hold the lever 11 against projection 19.

A set screw 83 is threadably secured in member I4 and has its lower end fitting in a suitable groove in pin 16 to prevent said pin from moving out of its bore.

Base member H] has pivotally mounted on the upper side thereof a shuttle supporting member 81 (Figs. 1 and 2). In order to provide a level surface on the upper side thereof, a plate 88 is secured on the upper side of member 8! by any suitable means such as screws 89 and 90. These screws penetrate slots 84 and 85 respectively in member 81, which slots allow the position of plate 88 to be moved inwardly toward the motor so that the groove on the bottom side of the shuttle will not be allowed to extend over the inner edge of the plate. Member 81 has a down-turned flange 810. on the inner side thereof which is engaged by set screws 9| and 92 to properly position the pivoted member 8! on top of the base It]. This merely provides another means for adjusting the angularity of the shuttle with respect to the cutting tool since in some instances the shuttles vary in thickness slightly from one end to the other and it is necessary to adjust the member 8'! about its pivot point 86. Mounted in the upper left-hand portion of pivoted member 81, (Figs. 1 and 2), is a shuttle engaging means 93 which is comprised of an inclined portion 94 having a centrally disposed groove 95 therein for the reception of the point of shuttle 41. The lower portion of member 93 has a tenon 96 which is adapted to fit in mortise 91 cut in the top of pivoted member 81. In order to fasten the member 93 in fixed position a suitable set screw 98 and a shim 99 are provided for engaging the side of tenon 98 (Fig. 5). A similar member I80 is provided on the other end of the pivoted member 8! and is comprised of inclined member |8| having a centrally disposed groove I02 cut therein for engaging the other point of the shuttle. This member has a tenon I03 on the lower portion thereof which is adapted to fit in mortise I04 cut in 5 the upper side of pivoted member 81.

Member I has a downwardly projecting lip I which is penetrated by a suitable threaded shaft I06, said bolt having a collar I01 disposed on one side of said lip and fixedly secured to shaft I06, and a knurled nut I08 is fixedly secured on the other side of lip I05 to the shaft I06. The threaded shaft I06 is threadably mounted in bore H0 in the right-hand end of pivoted member 81. By turning the knurled nut I 08 it is evident that the member I00 may be moved longitudinally of the member 81 to cause the ends of the shuttle to be tightly secured between members 93 and I00.

In order to take up the play between tenon I03 and mortise I04 a shim III is provided which is held in position by means of set screw I09 (Fig. 6).

While the cutting tool 45 is shown for shearing the sides from the shuttle, it is to be understood that other tools can be substituted and the machine used for cutting the thread grooves, feeler slots and bottom grooves on the shuttles in the same precise manner that the tool 45 trues up the sides.

3 Figures 11 and 12 show an attachment which may be mounted on the member 93 when a righthand or left-hand shuttle is being trued. One of the points of a shuttle of this type is off center and it is necessary that the shuttle be centrally located on the top of pivoted member 8'! in order to be properly trued. This attachment will be designated by reference character II2. Disposed in collar I I2 is a groove I I3 which is slightly ofi center from the groove 95 in the member 93. The collar H2 is positioned on member 93 and a suitable set screw I I4 is tightened to secure the member in place.

Figure 11 shows a top plan view of this member when it is attached to member 93 associated with shuttle 41a and shows how the groove H3 is off-set from the position of grooves 95 and I02 in order to re-position the shuttle 41a. It is necessary for the groove H3 in member II 2 be off-set from the grooves 95 and I02 exactli the same amount as the tip of the shuttle 41a is off-set from its longitudinal center line, so

that when the attachment II 2 is reversed to dotted line position as shown in Figure 13 and the shuttle is turned over, the edge thereof will project over the edge of plate 88 the same amount in each case.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being set forth in the appended claims.

I claim:

1. In a shuttle truing machine having a pair of grooved members for engaging the ends of a shuttle and holding the same, one end of said shuttle being off-set from the longitudinal center line thereof, a motor driven rotary cutting member, means for moving the rotary cutting member while rotating alongside the shuttle, a grooved sleeve member insertable over one of the pair of grooved members and having an off-set groove therein for engaging the off-set end of said shuttle while a working operation is being performed on one side of the longitudinal center, said grooved sleeve member when removed and its ends reversed serving to hold the off-center shuttle for a working operation to be performed on its other side, and whereby each side of the shuttle will occupy approximately the same position with relation to the cutting tool.

2. In a shuttle truing machine, a base member, a trackway disposed longitudinally of the base member, a motor mounted for travel along said trackway and having a shaft disposed at approximately right angles to the trackway, a cutting tool mounted on said shaft, an upstanding portion disposed in parallel relation to the trackway, a table pivotally mounted intermediate its ends on said upstanding portion, a pair of converging members having their proximate faces grooved, means for fixedly securing the lower end of one of the converging members to said table, means for adjustably securing the lower end of the other converging member to said table, a collar insertable over one of the converging members and having an off-set groove in its face for reception of the tip of a shuttle having an end which is off-set from its center line.

FRANCIS O. GIBBS. 

